• Matching numbers with subtle upgrades• Special Equipment model presented in desirable, original factory colours• The last and most sophisticated in the legendary XK series

As the ultimate expression of Jaguar’s XK series cars, the XK150 was the natural product of continual improvements to the lineage, as well as the marque’s brilliant competition record. It continued to offer the spirited performance and luxurious appointments that Jaguar’s customers had come to know and love about the cars from Coventry. Four-wheel disc brakes, an enlarged radiator opening, a revised cylinder head, and enhanced passenger room marked the most significant improvements. The low-cut door lines of the XK120 and XK140 were discarded for a more conservative shape, whilst the basic XK chassis remained, albeit with an upgraded 3.4-litre twin-cam six as standard equipment. Inside, all models received a padded dash top, softer and wider seats, and a windscreen that wrapped around the cockpit.

In addition to the drop head coupé and fixed head coupé models that were originally offered, a lighter, more sporting roadster was added to the line-up later in 1958. Furthermore, buyers could specify an SE model, which added 20 more horsepower, to raise the 3.4-litre engine’s output to 210 horsepower. For the driving enthusiast, the most desirable example would have been the more powerful SE engine coupled with the roadster body and wire wheels, in order to combine the thrill of open-air motoring along with all the power that Jaguar could muster from the silky smooth and race-proven XK engine.